In order to ensure that the effective value of prestressing reaches the design requirements, the orifice drag coefficient and deflection coefficient are measured before tensioning. This paper mainly introduces the test method and the calculation and analysis results.
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Feng Mingyuan, Wen Shu, Zhang Qisheng Friction resistance test of bonded prestressed duct of Tanzhong Viaduct in Liuzhou, Guangxi. Prestress Technology 2001,5(02X):41-42. 10.59238/j. pt.2001.02X.012